 Ontario electoral district | |
|---|---|
| Defunct provincial electoral district | |
| Legislature | Legislative Assembly of Ontario |
| District created | 1867 |
| District abolished | 1925 |
| First contested | 1867 |
| Last contested | 1923 |
Northumberland West was an electoral riding in Ontario, Canada. It was created in 1867 at the time of confederation and was abolished in 1925 before the 1926 election. It was merged with Northumberland East to form Northumberland.